Optimization of ultrafilter feed conditions using classical filtration models

Two classical filtration models were evaluated to assess their applicability to test data obtained from filtration of a high level waste (HLW) sludge sample from the Hanford tank farms. One model was then selected for use in evaluation of the optimal feed conditions for maximizing filter throughput...

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Bibliographic Details
Published in:Journal of membrane science 2005-11, Vol.265 (1), p.137-141
Main Authors: Geeting, J.G.H., Hallen, R.T., Peterson, R.A.
Format: Article
Language:English
Subjects:
Concentration polarization
DESIGN
FILTERS
FLOW MODELS
High Level Waste
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
Optimization
RADIOACTIVE WASTE PROCESSING
Resistance in series
SLUDGES
STORAGE FACILITIES
ULTRAFILTRATION
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Summary:Two classical filtration models were evaluated to assess their applicability to test data obtained from filtration of a high level waste (HLW) sludge sample from the Hanford tank farms. One model was then selected for use in evaluation of the optimal feed conditions for maximizing filter throughput for the proposed waste treatment plant (WTP) at the Hanford site. This analysis indicates that an optimal feed composition does exist, but that this optimal composition is different depending upon the product (permeate or retentate) that is to be maximized. A basic premise of the WTP design had been that evaporation of the feed to 5 M Na (or higher if possible) was required to achieve optimum throughput. However, these results indicate that optimum throughput from a filtration perspective is achieved at lower sodium molarities (either 3.5 M for maximum low activity waste (LAW) throughput or 4.9 M for maximum HLW throughput).
ISSN:0376-7388
1873-3123
DOI:10.1016/j.memsci.2005.05.008